Mildew is fungal growth that develops on damp fabrics and surfaces. On towels, it causes musty odour and visible discolouration.
Causes
Mildew requires: - Moisture (damp towels) - Warmth (room temperature) - Organic matter (cotton fibres, dead skin) - Time (sustained dampness)
Towels that don't dry completely between uses are prime targets.
Signs
- Musty, earthy smell
- Grey, pink, or black spots
- Discolouration
- Smell persists after washing
Prevention
- Dry towels completely between uses
- Ensure good bathroom ventilation
- Don't leave wet towels bunched
- Wash regularly
- Dry immediately after washing
Removal
Light mildew: - Hot wash with oxygen bleach - Vinegar soak - Sunlight exposure (natural bleaching)
Heavy mildew: - May require multiple treatments - Chlorine bleach on white towels - Sometimes towels are beyond saving
vs Bacteria
Mildew and bacteria both cause towel odour but differ:
| Mildew | Bacteria |
|---|---|
| Fungal | Bacterial |
| Visible spots | Usually invisible |
| Earthy smell | Sour smell |
| Needs sustained damp | Grows faster |
Related Terms
- Bacteria - Different cause of odour
- Laundry stripping - Deep cleaning method